crystal radio


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crystal radio

n.
A simple radio receiver, typically incorporating a crystal in the tuner, that has a very long antenna and gets all its operating power from the incoming signal.
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This led to his constructing devices from a working crystal radio, a cannon that used matchheads for powder and rockets that had the tendency to explode rather than lift off.
when I left my crystal radio project out on the kitchen telephone
com/) has been honored with the prestigious National Association of Broadcasters' Crystal Radio Award, which recognizes outstanding year-round commitment to community service.
Rochow, whose interest in silicon chemistry had been triggered by building a quartz crystal radio (quartz is silicon dioxide) as a child, worked out a way to make silicones using essentially sand and methane as raw materials.
Contract notice: Modernization crystal radio network dreals centre
All the songs are the ones I heard on the old Long Wave when I was a kid in Brum listening to my old crystal radio.
From its humble beginnings on a small crystal radio set in the early years of radio to its wide distribution through broadcast and internet today, farm broadcasting has been a part of agriculture's rich heritage for nearly 100 years and will continue to be the bridge for information to producers and consumers for years to come in the future.
There they scrutinise Oliver Cromwell's sleeping cap, a plate from the era of Samuel Pepys and a prisoner of war's crystal radio.
As with the quartz crystal in a watch or crystal radio set, the crystal in a QCM has a resonant frequency where it has the greatest response to an electrical stimulus.
I CAN REMEMBER the day, when I was just tall enough to see the top of the kitchen table, that my father patiently assembled a crystal radio set: a shoebox, the tube out of a toilet roll, wound with copper wire, a few bakelite knobs and the whiff of melting solder.
A polio victim whose bed-bound childhood was spent putting together crystal radio kits, he went to work after college manufacturing radio tubes first for Westinghouse, then for DeForest.
WFTL is owned by James Crystal Radio Group, owners of five other radio stations in South Florida.